<?php
$con = mysqli_connect('localhost', 'root', '', 'friday');
 mysqli_set_charset($con, 'utf8');
 $sql = 'select * from lianhua ';
 $result = mysqli_query($con, $sql);
 $arr = mysqli_fetch_all($result,MYSQLI_ASSOC);
 $str = json_encode($arr);
 echo  $str;
?>